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Cresol Purple Structure

Cresol Purple

Chemical Properties

Melting point >250°C
Boiling point 577.5±50.0 °C(Predicted)
Density  1.404±0.06 g/cm3(Predicted)
storage temp.  room temp
solubility  Very slightly soluble in water, ethanol; soluble in methanol
pka 1.51, 8.32(at 25℃)
form  Liquid
color  Dark green
PH Range 1.2 (red) - 2.8 (yellow) and 7.4 (yellow) - 9.0 (purple)
Water Solubility  Soluble in water and sodium hydroxide solution. Slightly soluble in alcohol.
λmax 579nm, 371nm
Merck  14,2577
BRN  350314
Stability Stable. Incompatible with strong oxidizing agents.
Major Application Fuel cells, sensors, display device, falsification-proof security paper, inks, correction fluid, paints, detection of electrophilic gases, lubricants, cement products, packaging system, adhesive, cosmetics, food storage, determining glucose in dialysis solution, screening of cat diseases, detecting carbohydrates, oral hygiene products
EPA Substance Registry System Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[3-methyl- (2303-01-7)

Safety Information

Safety Statements  24/25
WGK Germany  WGK 2 water endangering
TSCA  Yes
HS Code  2934 99 90

MSDS

Usage And Synthesis

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